Self Evolving Cube

[It a cube that can evolve/upgrade anything, fuse with another cube that has been used.

It is a god level item with high end technology, magic, formation, defense etc...

When used it will evolve/upgrade everything that is been used with and Fused with a cube that is been used to create the strongest defence and offense. Can be used in building, weapons, items, etc...

The design will the most luxurious, sophisticated, comfortable, that has never been seen. Can bring a threatening feeling to the enemy's and unfriendly being.]